# Seal Create vs DuoNiu Write

The clearest difference is in-app purchases: Seal Create at none against DuoNiu Write's 2. Seal Create also leads on iOS requirement (14.0 vs 17.0). DuoNiu Write's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. DuoNiu Write sells 2 one-off in-app purchases. Seal Create asks for nothing beyond the download.

Seal Create ships an update monthly, DuoNiu Write weekly. The most recent releases landed on September 27, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Seal Create | DuoNiu Write |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 126 MB | 131 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [心逸 沈](https://appshunter.io/developer/1689875556) | [娟妹 曹](https://appshunter.io/developer/6780705701) |

## What reviewers say

### Seal Create

[App page](https://appshunter.io/ios/app/seal-create/id1515121113)

This app makes the ancient art of seal carving accessible through technology. It allows users to generate custom seals with a single click, virtually experience the carving process, and even create physical seals for 3D printing or mechanical engraving.

**Highlights:** One-click seal generation, Virtual carving experience, Parametric customization system, Simulated brush and knife effects, 3D printing and mechanical engraving support, Learn seal carving history and culture

**Features:** macOS Compatibility

**In-app purchases:** none


### DuoNiu Write

[App page](https://appshunter.io/ios/app/duoniu-write/id6780910815)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Poem Practice | $0.99 | one-time |
| Unlock All Poetry | $0.99 | one-time |


## Frequently asked questions

### Is Seal Create free?

Seal Create is free to download, with no in-app purchases.

### Is DuoNiu Write free?

DuoNiu Write is free to download, with in-app purchases available.

### Do Seal Create or DuoNiu Write have ads?

Neither Seal Create nor DuoNiu Write shows ads.

### Which is updated more often, Seal Create or DuoNiu Write?

Seal Create ships an update monthly, and DuoNiu Write weekly. Most recently, Seal Create was updated on September 27, 2026 and DuoNiu Write on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*